If you feel so inclined...

I am working on my sermon for next friday. I am doing it on 1John 3. We have to do an expository sermon so basically I have to just come up with the big idea of the chapter and preach on that. This is where you come in. I'm just curious to see if I am on the right track so If you have some free time in the next few days you can read the chapter and comment with what you see as the big(main) idea of the chapter. If you have any other insights feel free to comment with those as well:)